You can probably do a search on scar creams, or scar healing, here, and bring up some of our conversations.
My understanding is that scars can hypertrophy (keloid -- become very raised and twisted looking) due to some confusion in healing. Mine did, it's continuing to flatten out as years go by, but it is rather red and ropey (hard and tender). I was told by many alternative medicine people to massage it, to keep the blood circulating and remind it to continue to heal properly.
Some people end up with a beautiful, skinny white line. Some of us don't. If we are prone to hypertrophy, I'm not sure there's much that can be done about it. Some, here have mentioned radiation treatments that have gone well.
When you choose a lotion, remember to also find some time each day to massage your healed wound in a circular fashion.
Good luck. The healing takes time. Be patient! You're gonna live a long time now... if this summer isn't good for a "revealing" look, next summer will be!
Marguerite